Improvement in stop-valves for faucets



UNITED STATES PATENT OEEICE.

WILLIAM KRULL, OF NEW YORK, N. Y.

IMPROVEMENT IN STOP-VALVES FOR FAUCETS.

To all whom 'it 'may concern:

Be it known that I, WILLIAM KEULL, of the city, county, and State ot'New York,have invented a new and useful Improvement in Stop-Valves; andI do hereby declare that the following is a full, clear, and exactdescription ot' the same, reference being had to the accompanyingdrawings, forming part of this speci- Ication, in which- Figure lis avertical section of a faucet with myimprovement. Fig. 2 is an invertedpian View of the valve. Fig. 3 is a vertical section of the same.

Similar letters of reference indicate corresponding parts in the severalfigures.

This invention relates to stop-valves of the puppet kind, which are heldagainst their seats; and it consists in a certain construction of thevalve, whereby it is made t0 readily adapt itself to its seat and closeperfectly tight under all circumstances, andis rendered very durable.

A is the shell of the faucet.

b is the inlet-passage, and c the outlet-passage.

e is the valve-seat at the top of the inlet-passage.

cl is the screw fori pressing the valve to its seat,worhingthroughastnfng-box, j', and having a central hemispherical cavity, n, in its lowerend to receive a central teat, g, of corresponding form, on the back ofthe valve.

7e is the shell of the valve, made of brass or other hard metal, of theform of a shallow inverted cylindrical box, and having the teat g on itsback.

fi is the illing of soft metal or alloy, cast,

soldered, or otherwise firmly secured in the shell and projecting belowthe edges thereof to form the face of the valve, which may be made fiator of any other suitable form to it the seat e.

The valve being detached from the stem and fitted thereto with thehemispherical teat g on its back is permitted to adapt itself withcertainty to the seat, and the soft-metal face yields readily to slightinequalities in the seat or to any sand or other hard material that maybe accidentally interposed between the valve and seat, and so insuresthe tight closing of the valve when pressed to its seat by the screw.

This valve may be applied to all kinds of faucets and stop-cocks. Thesoft-metal face adapts itself to inequalities in the seat and yields toany hard material-such as sandwhich gets between it and the seat, aswell as india-rubber, than which it is more durable, and it neverrequires regrinding, like a hard metallic face.

The illing i may be composed of pewter or other soft metal or alloy.

What I claim as my invention, and desire to secure by Letters Patent, is

The stop -valve, composed of a shell, h, of' hard metal, having on itsbach a hemispherical teat, g, fitted to a corresponding cavity, n, inthe screw or spindle g, and a iilling, t', of soft metal, part of whichforms the face, substantially as herein specified.

W. KRULL.

Witnesses:

J. W. CooMEs, GEO. W. REED.

